Combined type-writer and adding-machine.



No. 817,302. PATENTED APR. 10, 1906.

' A. s. DENNIS.

COMBINED TYPE WRITER AND ADDING MACHINE.

v APPLIOATION FILED JUNE 39. 1903.

2 SHEETS-SHEET 1.

mmmllmllun mlllllllllllllll m 1 Q 55:5 9

lnvzbmm ATTY - PATBNTED APR. 10, 1906. A. S. DENNIS. COMBINED TYPE WRITER AND ADDING MACHINE.

APPLIOATION FILED JUNE 29, 1903.

2 SHEETS-SHEET 2.

ATTtsT machine has added and fiirnished the r in the adding-machine and a corresponding appropriate keys therein, .fclnne, and without operating the adding-inai331. ii-

ADULlllUS S. DENNIS,

AND, IE-F10, ACSitiNUR, BY MESNE ASSlhrNiill lN'lii, TO THE NA'ilUr-TAL Pit MACHENE COMPANY, OF CLEVELAND, Uiiitl, A CURPURAHUN OF tllliO.

coins rwDEEiFdQ-i E flA Fl@ME,

i No. 817,302.

Patented April 10, 1906.

Anplicatiozi lllezl June 29, 1903. Serial tic. 163,487.

To (all whom may concern:

Be it known that l, [inonriitis S. Dawns, a citizen of the United States, residing Cleveland, in the county oi (luyahoga and State of Ohio, have invented cer ain new and useful improvements in a Combined. T ot-.- W ritcr and iiddingMachinc; and i do dec. that the following is a lull, clea and exact description of the invention, which will enable others skilled in the art to which it 21p pertains to i" l A. and use the same.

This invention relates to a comhined typo writer and mlding-marhinc.

In the accompanying drawings, Figure l. a plan view of the two machines opcratively connected as 'a'intempletcd in this invention. Fig. 2 a front sectional elevation oi the two machines and the connecting mechanism on line :r, Fig. i, Fig. 3 is a plan view of the operatinp connections between the respective key-levers of the two machines, as hereinafter more fully descrihed. Fig. i is an enlarged perspective view of one lieydever in each machine and the operati mechanism connecting, them and wi'iich represents one ol the several lines of cmmcctions shown in Fig. 3.

The idea of this invention to couple an adding-niacinnewith a trp'rge-writimr machine, and both machines may he ol an oi the so eral types or ltinds which are now in the market or which may he made hereinafter and which en'iplo'y key-levers whereby when it is desired to write and add up a series of items in a letter or a bill which is being written on. the type-writing machine the adding-4* machine can be operated and hy its connections with the typewriter at the same time and in the S2l-Ii1(} 1i1fl]1flfil' operate the corresponding keys in the type-write and write said items in columns therein and furnish the total to be written down, thus reproducing in the type-writer the items that the addingl oi. l*inally,when all the items have been added column has been written in the type-writer the total can he ascertained from the addingmacliine and recorded at the foot of the column in the type-writer by depressing the 0 i. .-n this me chine when this is done. By these means any number oi items may be summarized in the addirig-machine, and hy the same operation the said items can he and are reproduced in column. in relation to each other on the paper in the type-writer the same as if they were written by the type-writer itself, and this is followed with the further advantage oi having thev additions of the items correctly made when the last item has been recorded and ready to set down, so that it becomes the work of hut a moment to make the transfer ol the total upon the page in the type-writing machine and without going, to the trouble of mentally summing up the items therein. All this will appear in the further description oi the invention.

Now referring; to Fig. l, A represents the typc-writer or typewriting machine of any approved pattern or style, and B represents an adding-machineof the style in this instance known as the Dennis machine and which of my own invention. These machines are placed side by side upon a table or other suitable support and are operativcly connected between their I'cSIXKttlVO key-levers (L and b by means of the compound lever (J, consisting of parts and c. This connecting mechanism in this instance is oi such character and construction that the key-lever a can he operated from the key-lever b, but the depression of key-lever a will not move or affect the lever 7). Hence the tjJpQ-KVYlt8T can be operated indc dentl'y and is not at all affected by the presence and mechanical connection of the adding-machine, while the adding-niachinc cannot be operated without ailecting and operating the type-writer when the connections hctween them are made for joint operation, as herein shown. To these ends I arrange a suitable stem 2 with a somewhat enlarged head beneath each key-lever b of the adding-machine and in suchrelation .to such lever at its head that the said stem will be depressed when a lever Z) is depressed, and the said stem is provided with suitable guides or supports, as seen in Fig. 2. pivotal connection with its own initial level 0, pivoted on its own post 3, and said lever has pivotal. connection with the other-levenje, which rests upon itsown post 4. The outer end of iever c" projectsthrough a long slot in Each stem 2 has gob the hook or hanger 5, engaged upon key-lever a. It follows from this arrangement and.

' ingmechanism between t e respective keylevers a, and 1) serves the purpose. Fig. 3 shows aplan of eleven difierent connections of this kind and with staggered relation on account of the difierent positions of the re spective keys to be engaged. However, said connections are understood to be alike in all 1 particulars, so that a full description of one serves for all. I may further add that the particular construction of said connecting mechanism herein shown and described is only one of several constructions which I have tried With more or less success, and therefore, although I show what may be considered now as my referred construction, I desire that it be un erstood that I may substitute the same with any equivalent and sufficient mechanical connection and arrangement which w1ll give the same result practierases cally and not depart from the spirit of the in rise under their own spring-pressure.

/Vhat I claim is- 1. A type-Writer and an adding-machine,

and corresponding key-levers therein, in combination with a set of compound levers con necting the key-levers of one machine with the corresponding key levers of the other machine.

2. A typewriter and an adding-machine and corresponding key-levers therernfin combination with a line oi mechanism connecting the key-levers of one machine with the corresponding keydevers of the other machine, said mechanism. comprising a set of pivoted levers operatively connected, a vertical stem eng a ed with the free end of one of said pivoted levers, and a link engaged with the other of said pivoted levers.

W'itness my hand to the foregoing specification this 18th day of June, 1903 AnoLPHUs s. DENNIS.

Witnesses R. B. Moss-n, R. ZBORNiK. 

